Sales staff learn the expertise of valves.
In order to make the sales staff more professional, the leaders of Yingli Machinery invited professional teachers to explain the knowledge about ball valves to employees.
Every employee listens carefully to bring professional answers and quality service to customers.
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德令哈市|
Address: High-Tech Industrial Park, Laoshan,Qingdao China
Phone: 86-532-88910996
Email: info@yingliqd.com